Coupling for conduit-rods.



Patented Dec. 28, 1915.

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EDW'IN L. BROCS'HUAY, OF GLENSIDE, PENNSZ VANIA.

COUFELXNG FOB. CONDUI'J-RODS.

Specification of Letters Patent. Pat-gnwigd B 753 1915 Application filed January 7, 1915. Serial No. 1,055.

To all whom it may concern Be it known that I, EDWIN L. BROCKWAY, a citizen of the United States, residing at Glenside, in the county of Montgomery and State of Pennsylvania, have invented certain new and useful Improvements in Couplings for Conduit-Rods, of which the following is a specification.

The principal objects of the present invention may be said to reside in the providing of a coupling for conduit rods in which the parts may be coupled together at practically any angle and which when once coupled together are interlocked against displacement with respect to one another while being passed through a conduit.

Other and further objects of the present invention reside in the providing of general details of construction and arrangement and combination of parts as will hereinafter more fully appear.

The invention consists of the improvements hereinafter described and finally claimed.

The nature, characteristic features and scope of the invention will be more fully understood from the following description taken in connection with the accompanying drawings forming part hereof and in which:

Figure 1, is a view in perspective of the two parts of the coupling in position for assembling. Fig. 2, is a view in side elevation, partly sectioned, of the two parts partly assembled. Fig. 3, is a view in side elevation of the two parts assembled in interlocked position, and Fi 1, is a top or lan view of Fig. 8.

In the drawings, the sockets 10, and 11,

of the two part coupling are fitted to rods 12, and 13, as 1s well understood in the art. A description will first be given of the specitic construction of socket 10, as formed in accordance with the present invention, all of the parts thereof being formed integral with one another. The socket 10, which is cylindrical, has extended forwardly therefrom for a short distance, a solid portion 1%, see Fig. 2, the bottom of which is cut away to form a groove 15. The part l l, is in turn further extended so that at one side, a flat portion 16, is provided which terminates in a cylindrical portion 17. This latter portion is longitudinally slotted as at 18, centrally thereof the outer wall of said slot being in the same plane with the flat portion 16, above described. The bottom wall of the portion 17, is extended as at 19, in the form of a gradually increasing curved section which extends slightly beyond the end of the part 17, and has extended vert'cally therefrom a rib 20, which terminates flush with the bottoinof the slot 18. The width of the rib is approximately the width of said slot 18, and projects slightly beyond the end of the part 17, as shown. Extended at right angles from the fiat portion 16, above described is a tapered pin 21. The purposes of these various parts will be outlined after a description of the socket 11, has been given. The parts of the socket 11, are also formed integral. Extended forwardly from the socket 11, is a central tongue 22, the free end of which terminates in a flat stop 23, which. stop is in a plane below that of the tongue proper. The part of the tongue which connects this stop with the tongue proper is generally curved along its edges as at 24, and An aperture 26, passes through the tongue as shown. That part of the socket end immediately below the tongue 22, is vertically grooved as at 27.

descri J'tlOIl will now be given of the manner of assembling the above described sockets and their complemental parts :-The socket 10, for illustrative purposes will be assumed to be within a conduit in horizontal position with the part'19, resting upon the conduit bottom. The socket 11, is then held at angle as shown in the drawings and the tongue 22, fitted sidewise between the parts 14L, and 17, of the socket 10, so that the aperture 26, may be caused to cooperate with the tapered pin 21. The socket 11, is new partially rotated around its pivotal connection with socket 10, so that the foot 23, enters the slot 15, and the tongue 22, enters the slot 18. As the socket 11, is finally pushed to horizontal position with its axis paralleling the axis of socket 10, the groove 27, and rib 20, engage and the aperture 26, and tapered pin 21, cooperate in a cam-like manner to firmly clamp the above described parts in secure position against lateral movement with respect'to one another. With the parts thus interlocked, the curved bottom 25, of the tongue 22, and the curved part 19, of socket 10, form runners or skids, whereby the sockets and their rods may be readily slid along a conduit.

With the above construction of parts while the sockets are interlocked against lateral movement the pivotal or hinged connection llt move out of alincment.

permits the coupling to partially move so that the horizontal axis of the sockets may Thus rises and falls in the conduit may be provided. for without strain uncn the parts.

What ll claim is:

1. A coupling for conduit rods embracing two parts, one of which consists of a socket provided with a flat portion arranged intermediate cylindrical sections, said flat portion being provided with a laterally disposed tapered pin, a slot being present in each of said cylindrical sections, and or which the other part consists of a socket terminating in a tongue adapted for insertion. between said cylindrical sections and within said slots, said tongue having an aperture therethrough for cooperating with said tapered pin.

2. A coupling for conduit rods embracing two parts, one of which consists of a socket provided with a flat portion arranged between cylindrical sections said flat portion being provided with a laterally disposed tapered pin, slots being present in the bottom 01": one cylindrical section and in the top of the other section, and of which the other part consists of a socket terminating in a tongue adaptedfor insertion between said cylindrical sections and within said slots, said tongue having an aperture therethrough for cooperating with said tapered pin, and means between the abutting ends of the two parts for interlocking the same against lateral displacement.

3. A coupling for conduit rods embracing two parts, one or" which consists of a cylindrical member cut away intermediate its ends to provide a Hat portion equipped with a. laterally extended, tapered pin, the bottom of the outermost cylindrical section so formed being provided with a generally curved rib which extends slightly beyond said section, the top of said section being slotted and the bottom of the inner section being also slotted, and of which the other part consists of a cylindrical member provided with a flat sided central tongue adapted for insertion within said cutaway portion and within said slotted parts, said tongue terminating in a Hat foot, the tongue being apertured to cooperate with said tapered pin, and the foot portion being generally rounded upon its underside, and means between the abutting ends of said parts when in assembled position for interlocking said parts against lateral movement, the foot portion which-is generally rounded extending below the coupling and in the same plane with said rib.

In testimony whereof, I have hereunto signed my name.

EDl/VIN L. BROCKVVAY. Witnesses: v

THos. C. ALLEN,

WILLIAM J. JACKSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. i 

